TheBasement
Well-known member
I know the bottom monitor needs a cap kit (1/2 inch of video smashed at top) but I think the PCB has a video memory issue. The black bars move left and right during gameplay (so I don't think its the monitor) and Glass Joe has a nice purple rash. I suspect video memory, but the 8416 RAM is soldered on board so it will make it more difficult. Reseating all other chips didn't help. The manual says all RAM is 6116 but it is 8416's on this board, different manufacturer, same memory type.
I anyone has any hints or tips as to which memory, bank or trace to check I would appreciate it, or if it might have to do with a 74xxx chip not switching memory propery.
I anyone has any hints or tips as to which memory, bank or trace to check I would appreciate it, or if it might have to do with a 74xxx chip not switching memory propery.
